# Short answer find the quotient 6x^3-x^2-7x-9 ------------ 2x+3

143,010 questions, page 738-
## Physics

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.

*asked by Anonymous on March 11, 2012* -
## Physics

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.

*asked by Anonymous on March 11, 2012* -
## Physics

A bus started out going 20 miles per hour on the highway. One hour later it drove 40 miles per hour on the freeway. How long did it take to go 140 miles? Is the correct answer 3.5 minutes.

*asked by Anonymous on March 11, 2012* -
## Math - Properties of Logarithm

Can someone show how to this question. Loga(x+3) + Loga(x-3) = 3 I don't know if I'm typing this correctly the a is the base. So, I'm thinking, Loga((x+3)(x-3)) = 3 (x+3)(x-3) = 3^a x^2 - 9 = 3^a, x^2 = 3^a + 9 x = sqrt(3^a + 9) but now I'm stuck, I don't

*asked by Greg on June 9, 2011* -
## Health

1. A 15-year old female patient has experienced daily nausea for the past two months. The patient states that she feels like "I've eaten something that has upset my stomach.: She denies vomiting and weight loss. The patient has noticed a weight gain of 10

*asked by B B on March 30, 2010* -
## MATH

The length of Super Bowl commercials is said to be Normally distributed with a mean of 36 seconds and standard deviation of 8 seconds. a. Find the probability that a randomly selected Super Bowl commercial is shorter than 45 seconds? (2 points) b. Find the

*asked by ASH on February 2, 2015* -
## physics

Peggy drives from Cornwall to Atkins Glen in 37 min. Cornwall is 74.8 km from Illium in a direction 22¡Æ west of south. Atkins Glen is 24.6 km from Illium in a direction 18¡Æ south of west. Use Illium as your origin. Find the displacement during the

*asked by Ji on September 14, 2010* -
## Chemistry

Consider the reaction 2 SO2(g) + O2(g) in equilibrium with 2 SO3(g) . At 25°C delta H° = -197.78 kJ and delta S° = -187.95 J/K. Using this information, calculate the equilibrium constant for the reaction at -32°C. (R = 8.314 J/K) Enter your answer

*asked by Bill on November 16, 2014* -
## spelling

okay. this is a total toughie. 14 letter word, letters are ; LBEIYPORISSNTI. it is one word and so far noone can get it.

*asked by schoolgirl12 :-? on January 22, 2007* -
## Geometry

The volumes of two similar solids are 1,331 m^3 and 216 m^3. The surface area of the larger solid is 484 m^2. What is the surface area of the smaller solid? A. 864m^2 B. 288m^2 C. 144m^2 D. 68m^2 I think the answer is B or C just a lil confused...

*asked by Cassie on April 23, 2015* -
## Math word problem

A disoriented driver crosses diagonally from one corner of a 150 m by 275 m lawn to the far corner. How far does the wayward driver drive across the lawn? Give an approximate answer to three decimal places. What formula would I apply to solve this?

*asked by Shawn on October 27, 2008* -
## Applied maths

When a capacitor , charged to a voltage , is discharged through a resistor , the current will decay exponentially according to the following equation: i=E/R e^(-t/RC) If E=250 V,C=160 μF and R=2100 Ω, answer the following questions: a) What is the

*asked by DAVID on February 13, 2013* -
## chemistry

You react 25.0 liters of oxygen gas at STP with 50.0 ml of ethanol liquid. Ethanol has a density of 0.789 g/ml. After actually running the reaction you determined the percent yield was only 78.5%. How many LITERS of CO2 did you make? (Must put CO2 in

*asked by Amy on May 30, 2014* -
## insurance form preparation

what is a type of insurance policy outling the benefits to be paid for each type of service normally based on the usual and customary rates (UCR) for each community? A. disability insurance B. SSDI C. Free-for-service D. SSI my answer is C. please help!

*asked by Jessica on February 5, 2011* -
## math trigonometry

My question is kinda hard i don't know how to start the problem to get my answer. the question is: You are cleaning the gutters on your house. the gutters are @ a height of 24 feet. if you have a 50 foot ladder, what is the minimum angle the ladder can

*asked by kayla on December 6, 2009* -
## English

Identify the choice that best describes the word "report" Carlos wrote a report about modern foods for his social studies class. common noun*** proper noun compound noun collective noun *** - My Answer

*asked by Kaai97 on September 28, 2015* -
## Math

In Lloyd's pocket are 6 coins: 3 dimes, 2 nickels, and 1 penny. If Lloyd randomly takes two coins out of his pocket, what is the probablity that he will take out 11 cents? The book shows the answer 1/5, but my question is wouldn't the number of each coin

*asked by Teri on January 26, 2010* -
## math-calculus

1.For any function y+f(x), express dy/dx using limit notation. Give a clear explanation for your given answer. you probably meant to type y=f(x) By definition dy/dx = Limit (f(x+∆x) - f(x))/∆x as ∆x-->0 The explanation of this equation is the whole

*asked by Chris on March 26, 2007* -
## math

I'm working on conversions and can't ever figure out when I need to multiply and when I need to divide. For example - 50L = ? gal I know 3.79 L = 1 gal but do I divide or multiple to get the correct answer? Or, 2 mi = ? m I know 1 m = 3.28 ft and 5280 ft =

*asked by carly on January 31, 2018* -
## Chemistry

A light photon with a frequency of at least 0.0373 × 1016 Hz is required to split apart diiodine according to the equation: I2(g) → 2I(g) Calculate the energy (kJ) required to break apart a mole of diiodine. Express answer in scientific notation. I got

*asked by Kyle on January 30, 2012* -
## PHYSICS

Suppose that the magnetic field in the figure below has a magnitude of 1.1 T, the rod has a length of 0.86 m, and the hand keeps the rod moving to the right at a constant speed of 3.4 m/s. If the current in the circuit is 0.044 A, what is the average power

*asked by Andrea on March 14, 2013* -
## Language Arts

I’d been throwing rocks and things at birds since I was born and had never even came close to hitting one, I’d seen a million people throw a million things at birds and no one had ever really hit one, not even a pigeon! 1. The sentence above contains

*asked by Kathy on January 14, 2016* -
## Math

How do I solve problems like the following? There area approximately 5.58x10^21 (scientific notation) atoms in a gram of silver. How many atoms are there in 3 kilograms of silver? Express your answer in sicientific notation. ANY hints/tips are EXTEMELY

*asked by Cat on March 10, 2009* -
## English

How would you, as a writer, build goodwill with your readers? Queline, this question asks for YOUR opinion. To answer it, ask yourself why you read a book, or an article. What makes you enjoy what you have read or recommend it to someone else? If you would

*asked by Queline on May 2, 2007* -
## Urgent math quick

A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 75°F. (a) If the temperature of the turkey is 150°F after half an hour, what is its temperature after 45 min?

*asked by alice on August 11, 2015* -
## English

Please check my answer thanks:) You've been assigned to invite a group of mechanical engineering professor to tour your factory. What type of language should you use in the invitation? Formal language or Direct simple languge I picked direct and simple

*asked by Anonymous on November 11, 2007* -
## Chemistry 152

How many of the following processes would you expect to be spontaneous at 298K and 1atm? dissolving sugar in water decomposing NaCl to the elements climbing a mountain H2O (l)------H2(g)+O2(g) Choose one answer. a. 0 b. 1 c. 2 d. 3 e. 4 I thought that it

*asked by Car on July 3, 2010* -
## physics

Suppose the vertical loop has a radius of 8.92 m. What is the apparent weight (Wap) of a rider on the roller coaster at the bottom of the loop? (Assume that friction between roller coaster and rails can be neglected. Give your answer in terms of m and g.)

*asked by Hard to solve ..please help!!!! on March 19, 2011* -
## Physics

An ion beam has a cross-sectional of 2.5 mm^2 and the charge delivered by it to a target can be expressed as q(t)=(.12 C/s^3)t^3 + (.24 C/s^2)t^2 - .45 C. Calculate the current density in the beam at t = 3.0 seconds. I used an integral from 0 to 3s. and

*asked by Zabe on July 4, 2016* -
## Math Alg2

The number of computers sold by BCC depends on the dollar amount, x, that they spend on advertising. How many computers will they sell by spending $100,000 on advertising? Round to the nearest whole number and do not include units in your answer.

*asked by Moonshadow on April 12, 2012* -
## math

A school has purchased a large field that has a square area of 19,500 ft2. What is the approximate length of each side of the square area? Round your answer to the nearest foot. a. 140 ft c. 142 ft b. 139.64 ft d. 139 ft

*asked by daniel on July 17, 2014* -
## physics

if i take a fluid in a container open to the atmosphere and raise its height what happens to the hydrostatic pressure? I thought it would decrease because pressure decreases with altitude but the answer says that it would increase. I just assumed it would

*asked by joecool on June 27, 2017* -
## economic

If the Government fixes the price of this product at $2 explain what would happen in the market. Draw a supply and demand curve for "this" product. Is the fixed price above or below the market equilibrium? Depending on how you answer, there should be a

*asked by shirley on October 15, 2006* -
## physics

A toy rocket, launched from the ground, rises vertically with an acceleration of 32 m/s^2 for 4.1 s until its motor stops. Disregarding any air resistance, what maximum height above the ground will the rocket achieve? The acceleration of gravity is 9.8

*asked by chris on August 17, 2014* -
## child day care management,health,safety,and nutrit

Q; the introduction of semisolid foods to a five-month-old infant may be delayed if A.the infant has bottle mouth syndrome B.family members have a history of allergies C.the infant consistently prefers a bottle D.the infant is teething My answer is B is

*asked by alex on February 16, 2011* -
## Precalc growth and decay

Alison deposits $500 into a new savings account that earns 5 percent interest compounded annually. If Alison makes no additional deposits or withdrawals, how many years will it take for the amount in the account to double? the answer is 15 but i think its

*asked by Kerrie on April 19, 2009* -
## physics

This refers to the shuttle orbir question: my response to answers posted: So would I take the answer from the formula for a circumference of a circle(24900.26337) and divide it by 17,265 to get 1.442239408(~1.44h)? How I got the circumference: 2 x pi x

*asked by ashley on June 12, 2011* -
## Physical Science

The distance from earth to the sun is 1.5x10 to the 11th power minutes and light travels at a speed of 3.0x10 to the 8th power m/s. How long does it take sunlight to reach the earth? Give answer in minutes and seconds.

*asked by Belaune on January 21, 2013* -
## physics

Radius of Curvature A bicyclist traveling at 8 m/s rides around an unbanked curve. The coefficient of friction (is this static or kinetic friction?) between the tires and the road is 0.36. What is the radius of the shortest turn that the bicyclist can

*asked by Amanda on November 9, 2013* -
## algebra ll

if wrong corrcet and show work please.use two ordered pairs to write a prediction equation. then use your prediction equation to predict the number of comic books sold when the price is $4.50. my answer is y equals 28 minus 27 equals 1

*asked by Anonymous on October 6, 2008* -
## college algebra

A rock is thrown upward with a velocity of 28 meters per second from the top of a 38 meter high cliff, and it misses the cliff on the way back down. When will the rock be 7 meters from the water, below? Round your answer to two decimal places. Gravity

*asked by denise t on February 12, 2017* -
## Physics

An ion beam has a cross-sectional of 2.5 mm^2 and the charge delivered by it to a target can be expressed as q(t)=(.12 C/s^3)t^3 + (.24 C/s^2)t^2 - .45 C. Calculate the current density in the beam at t = 3.0 seconds. I used an integral from 0 to 3s. and

*asked by Amid on July 3, 2016* -
## ENGLISH

Please help me to pick out 6 lines from the poem Invictus of William Ernest Henley that used sensory images and identify the sense used for each line.I also need to pick out one line that used onomatopoeia. I only Have one answer Black as the pit from pole

*asked by ZACHARY on December 30, 2014* -
## Science

A vaccine can protect you against a disease because it (1)destroys toxic substances from bacteria before they can make you sick\ (2) stimulates your immune system against the pathogens (3) kills any pathogenic bacteria in your body (4) changes pathogenic

*asked by George wang on May 2, 2012* -
## physics

Consider a block on an incline plane. The coefficients of static and kinetic friction between the block and the incline are µs = 0.353 and µk = 0.31. Calculate the critical angle θc, where the block just begins to slide. Answer in units of ◦. The

*asked by I dont like physics on November 24, 2015* -
## Chemistry H.

Assume that the nucleus of the fluorine atom is a sphere with a radius of 5 x 10 ^ -13 cm. Calculate the density of matter in the fluorine nucleus in grams/cm^3. Now convert your answer to tons per cubic centimeter, knowing that there are 454 grams in one

*asked by Jennifer on September 23, 2012* -
## Social Studies

Which of the following was responsible for the eventual desegregation of southern public schools? A. Southern manifesto B. voting rights act of 1965 C. civil rights act of 1964 D. Brown vs. board of education My answer is D is that correct

*asked by Anastasia on March 31, 2016* -
## Precal

what is your answer for 8sin^2theta + sintheta -1 ? and how would you do it ? thanks You have not written an equation. There is nothing to "solve". Did you leave out an " = 0 " ? Yeah sorry Yeah sorry Let x = sin theta 8x^2 +x -1 = 0 x = [-1 +/-

*asked by Tri on June 21, 2007* -
## Physics

Suppose the 480 lbs pile driver that drops 20 ft drives the pile 2.0 in. every time it strikes the pile. What is the average resisting force of the ground where the pile is driven? Answer: 57,600 lbs Show Work

*asked by PAT on March 18, 2016* -
## Algebra / Scientific Notation

if you have 19.2 x 10 ^ 20 over 4.8 x 10 ^ 9 Would you first subtract 4.8 from 19.2 then subtract 10 ^ 9 from 10 ^20 Leaving an answer of 14.4 x 10^11???? you are using the word "over", which implies division. Why would you even consider subraction (19.2 x

*asked by Russell on August 15, 2007* -
## chemistry

System: Co(H2O)6^2+(aq) + 4Cl^-(aq) CoCl4^2-(aq) + 6H2O(l) Q: What would happen when you add HCl as a source of Cl- ions? Explain the observations in terms of Le Chatelier's principle. Would the answer be that the reaction shifts to the right? How would

*asked by Tanimoto on November 14, 2008* -
## chem101

Processed cheese must be at a pH of 5.5 to 5.9 to prevent growth of unwanted microorganisms. If a sample comes back with [OH-]of 7.76e-9 as a control supervisor would you send the cheese back? Justify your answer. My asnswer is no but I don't know how to

*asked by Akira12 on November 30, 2012* -
## Physics

How much thermal energy is released when 500g of steam at 100° C condenses into water and cools to 50°C Givens: m=0.5 kg t = 50 c = 2.010 Qtotal = Q1 + Q2 Qtotal = QmcΔt + mLv Qtotal = (0.5kg)(2.010)(50) + (0.5)(2.3*10^6) Qtotal = 1.15 * 10^6 The book

*asked by AlphaStrike on February 28, 2016* -
## English-Grammar

Identify the word or words the best describes the underlined(in parentheses) word for the question (Comparing the two essays), it is obvious that one relied on more thorough research. A.prepositional phrase B.participial phrase C.gerund phrase D.infinitive

*asked by Anon on October 18, 2012* -
## physics

A car starts from rest and travels for 5.9 s with a uniform acceleration of +3.0 m/s2. The driver then applies the brakes, causing a uniform deceleration of 1.3 m/s2. If the brakes are applied for 2.1 s, how fast is the car going at the end of the braking

*asked by Sonia on October 7, 2012* -
## Math

a deck of cards haa 52 cards. in it has 4 of {aces,2,4,3,4,5,6,7,8,9,10,queens,kings,and jacks well you know} what is the probability of getting 4 aces at a time? express your answers as a common fraction. ps. the answers 4/52 or simplfied is not the

*asked by Cindy on November 15, 2010* -
## chem

The min. energy needed to break a C-Br bond is 288000mol^-1. If one has access to laser with 3 output wavelengths 266,1065,800nm, which wavelength(s) can be used to break that bond? I keep getting 417nm for the wavelength (which is none of the outputs) but

*asked by Lenny on November 24, 2013* -
## PHYSICS

A car traveling 95 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.80 m . What was the magnitude of the average acceleration of the driver during the collision? Express the answer in terms of "g's,"

*asked by Anonymous on September 10, 2017* -
## Chemistry

A meteorological balloon had a radius of 1.1 m when released at sea level at 20◦C. It ex- panded to a radius of 5 m when it had risen to its maximum altitude, where the temperature was −20◦C. What was the pressure inside the balloon at that altitude?

*asked by Caitlin on November 20, 2012* -
## Chemistry

A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 750 mL of a solution that has a concentration of Na^+ ions of 1.3 M? Express your answer numerically

*asked by Tiffany on July 7, 2010* -
## chemistry

What is the molarity of 100ml of ethanol dissolved in 1.5L of water? Ethanol has a specific of 0.789, and its molecular weight is 46g/mol. My calculation 0.789 x 1.5L = 1.1184 1.184/46g = 0.025 x= 26M I am not sure answer. Pls help

*asked by Fai on August 19, 2012* -
## us hist

Grover Cleveland is to fathering a child out of wedlock as James G. Blaine is to: Questionable loyalty to his country Drug addiction Honesty Political reform None of the other answer choices is correct Not political reform. is it honesty....

*asked by jay on May 15, 2014* -
## Physics

In a Young's Double Slit experiment, the separation of four bright fringes is 2.5mm, the wavelength of light used is 6.2*10^-7m. If the distance from the slits to the screen is 80cm, calculate the separation of two slits. I tried applying

*asked by A GOODSTUDENT on May 2, 2019* -
## Chemistry

How much water needs to be added to 150mL of an 0.75 molar solution of lithium phosphate to make the solution 0.625 molar? I came up with 70.31mL Can you someone just check this for me please? you want to dilute it 75/62.5, so you are diluting it a factor

*asked by Kellie on February 26, 2007* -
## chemistry

By what factor does the fraction of collisions with energy equal to or greater than activation energy at 100 kJ/mol. change if the temperature increases from 32 degrees celsius to 63 degrees celsius. Give your answer in SCIENTIFIC NOTATION

*asked by LENNON on September 14, 2014* -
## physics

Suppose the vertical loop has a radius of 8.92 m. What is the apparent weight (Wap) of a rider on the roller coaster at the bottom of the loop? (Assume that friction between roller coaster and rails can be neglected. Give your answer in terms of m and g.)

*asked by HELP! on March 20, 2011* -
## physics

The initial speed of a cannonball is 500 m/s. The acceleration of gravity is 9.8 m/s2. The cannon and target are at the same elevation. If the ball is to strike a target that is at a horizontal distance of 3.7 km from the cannon, what is the minimum time

*asked by Anonymous on September 12, 2011* -
## Chemistry

Determine the value of the equilibrium constant,Kgoal , for the reaction N2(g)+O2(g)+H2(g) (1/2)N2H4(g) + NO2(g) Kgoal=? by making use of the following information: 1.N2(g)+O2(g)2NO(g), K1=4.1010x10^-31 2.N2(g)+2H2(g)N2H4(g), K2=7.40x10^-26

*asked by Sean on March 31, 2013* -
## statistics

(1) The director of a health club conducted a survey and found that 23% of members used only the pool for workouts. Based on this information, what is the probability that for a random sample of 10 members, 4 used only the pool for workouts? Round your

*asked by kalia on November 4, 2014* -
## Math

Sue bought an ice cream cone from Dairy Queen. The cone had a radius of 3cm and a height of 8cm. If I use the formula of (TT=3.14, r=radius, h=height) 2 V=1/3TTr h Is the answer 50.24 cm3? Any help is appreciated. If I'm not right could you tell/show me

*asked by Kyle on October 27, 2014* -
## Math

If the days of the year were numbered backward using consecutive numbers (so that December 31 is day number 1), in what month would day number 123 occur? A. August B. July C. March D. September I got September but I’m not sure if that’s the correct

*asked by Sean on August 7, 2018* -
## planning & implementing for the environment

An advantage of ordering equipment through catalogs is that A. there's no transportation cost (usually added to the cost at retail stores).B. prices are always cheaper than at retail stores.C. there's a wide selection of materials.D. you aren't billed for

*asked by Amanda on October 15, 2014* -
## chemistry

In the experiment you have added 50.0 mL of Ni(H2O)6 2+ to the calorimeter. To this you add 5.0 mL of ethlylenediamine and measure the change in temperature of the solution as the reaction proceeds. The temperature increases by 3.4 oC. Calculate the

*asked by Barb on April 9, 2013* -
## math

A semicircle is constructed along each side of a right triangle with legs 6 inches and 8 inches. The semicircle placed along the hypotenuse is shaded, as shown. What is the total area of the two non-shaded crescent-shaped regions? Express your answer in

*asked by Anonymous on September 12, 2018* -
## MATH!!!!!!!

The river boat paddled upstream at 12km/h, stopped for 2 h of sightseeing, and paddled back at 18km/h. How far upstream did the boat travel if the total time for the trip, including the stop, was 7h? Please help me, the answer is 36 km but i have no idea

*asked by bert on January 8, 2008* -
## Science - Electricity

Acetylene gas is leaking from a cylinder in the immediate vicinity of an insulated conveyor belt which has built up a charge of 3.0ìC. If the conveyor belt has a capacitance of 80pF, is there a danger of the acetylene being ignited? Consider both energy

*asked by tina on October 3, 2013* -
## Languagd Arts

Which of the following is the best reason to use visuals in a research presentation? A. To illustrate your main point in an engaging manner. B. To illustrate any topic with data in percentages. C. To show different ways of looking at the same information.

*asked by Grace on April 10, 2015* -
## art

The item below has been reviewed and is scheduled to be updated. All students will receive full credit for any response to the following. Please select two answer options to receive full credit for this question. (1 points) A.curved B.vertical C.horizontal

*asked by Burn marshmallow on October 12, 2018* -
## Math

What is the GREATEST number of pictures each 2.5-inches by 3.5-inches, that a photographer can print on an 8-inch by 10-inch piece of sensitized paper? Isn't the answer supposed to be 4, because once you cut it you cannot put it back together. Please tell

*asked by Anonymous on August 9, 2015* -
## Social Studies

If I could have some help on this question I'd appreciate it.I think the answer is B. Which problem would most likely result if banks did not exist? (1 point) People would no longer be able to save money. Money would not move through the economy very well.

*asked by Bob on November 9, 2012* -
## calculus

The maker of an automobile advertises that it takes 15 seconds to accelerate from 15 kilometers per hour to 70 kilometers per hour. Assuming constant acceleration, (a) The distance the car travels during the 15 seconds (Round your answer to two decimal

*asked by Sam on April 7, 2016* -
## bioalagy cells

in what types of cells(prokaryotes or eukaryotes) is cytoplasm and cytoskeleton Your antiquated instructor probably wants cytoskeleton for an answer because until recently it was assumed prokaryotes had no cytoskeleton. That is not likey the case. please

*asked by toto on November 20, 2006* -
## Math

You deposit $10,000 in an account earning 5% interest, compounded semi-monthly (twice a month). You plan to leave the account untouched for 25 years. How much interest will you earn over the 25 years? Round your answer to the nearest cent.

*asked by Victoria on January 19, 2016* -
## world history

What major problem did the Roman Empire face in the mid to late Fourth Century? A. Poor infrastructure B. Lack of education within the empire C. Weak leadership D. Immigration and invasion My answer is C.weak leadership?

*asked by anonymous on October 10, 2011* -
## From Theory to practice

A child who moved from throwing a ball using only an elbow movement to throwing a ball using her elbow, wrist, and shoulder is showing signs of _______ development. A. spatial B. intertask C. joint-plate D. intratask Answer is D

*asked by Amanda on July 1, 2015* -
## math,correction

can someone correct this for me thanks A ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. Use this information for exercises 35 to 38. Science and medicine. When will the ball reach a height of 80 m? h =

*asked by jasmin20 on April 5, 2007* -
## Chemistry check

Can someone make sure I have the right answer. The question is: Classify the statement as always true, sometimes true, or never true. A net ionic equation shows all ions present. I say never true because it only shos soluble strong electrolytes reacting

*asked by Mike on March 17, 2009* -
## Calc 3

The DNA molecule has the shape of a double helix. The radius of each helix is about 10 angstroms (1 Å = 10−8 cm). Each helix rises about 34 Å during each complete turn, and there are about 2.9 × 108 complete turns. Estimate the length of each helix.

*asked by Becky on October 10, 2012* -
## Chemistry

You have 23.0g of water initially at -46°C. How much energy in joules is required to heat the ice to 0°C? c ice = 2.1 J/g°C. I thought joules was calculated by grams*change in temperature*specific heat. The answer I get from 23*46*2.1 is 2221.8, but web

*asked by Harrison on March 1, 2015* -
## math

A semicircle is constructed along each side of a right triangle with legs 6 inches and 8 inches. The semicircle placed along the hypotenuse is shaded, as shown. What is the total area of the two non-shaded crescent-shaped regions? Express your answer in

*asked by Anonymous on September 12, 2018* -
## Biology II AP

Compared the process of mitosis with the process of meiosis and include answer with study of the change in chromosome number. Where do these changes occur and how are they relevant to the processes discussed? I understand the comparing part, but then the

*asked by Soojung on November 5, 2007* -
## Math

Simplify each expression and state any non-permissible values. (4 marks - show your work) 4x-1/x^2+7x+12 divided by 2x-1/x^2+x-12 My work on simplifying the expressions: 4x-1/(x+3)(x+4)divided by 2x-1/(x+4)(x-3) If I've gone wrong please help me understand

*asked by Alex on January 10, 2015* -
## math

Mr. Ismail invested sh. 36,000 in the bank which gives an interest of 20% per year. After how long will he get sh. 43,200? #please people help me this question how to arrive to final answer. Also i need to know if sh. 43,200 is either the total amount of

*asked by kelvin on April 23, 2018* -
## College Physics

A 0.35 kg stone attached to a 0.8 m long string is rotated in a horizontal plane. The string makes an angle of 20° with the horizontal. Determine the speed of the stone. I've tried tan 20= gr/v^2 = (9.8)(.8)/v^2 = 4.7 m/s and that's not the correct answer

*asked by Taylor on October 10, 2012* -
## English

"The grain of the western prairies is a major source of income." direct object indirect object predicate nominative predicate adjective Choose the answer that correctly identifies the underlined word. (source)

*asked by kevin on January 9, 2012* -
## MATH-Algebra 3

The Hernandez family left for a vacation at 8 a.m. By noon they were 208 miles away from home and the family stopped to get lunch. Calculate the average rate of change. I don't know what the rate of change is... I mean, I got that they were traveling at

*asked by sandra on December 15, 2015* -
## Maths

A rectangular field of length 260m and breadth 200m contains a circular track of diameter 140m. Taking pi=22/7, calculate the: length of fencing required to enclose the field and track, answer in km Please show working out! Thanks

*asked by 10M1 on November 8, 2011* -
## physicS

A skier is gliding along at 6.93 m/s on horizontal, frictionless snow. He suddenly starts down a 17.2° incline. His speed at the bottom is 29.7 m/s. What is the length of the incline? i understand that the equation used is gH= change in (v^2)/2 so i plug

*asked by Jason on October 8, 2010* -
## Ed. Tech

Which is the purpose of a concept map? A. to map out the best means of getting between two points. B. to add shapes and images in Microsoft PowerPoint C. to display photographs more effectively in PowerPoint D. to organize information visually around a

*asked by blue on October 22, 2014* -
## English

"Know now then thyself, presume not God to scan;/The proper study of mankind is man." Which of these is nearest in meaning to the word presume, as it is used in the passage above? - hasten - invent - cease - attempt My answer is hasten but I thought about

*asked by Steve on November 17, 2017*

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